Digital I/O

cancel
Showing results for 
Search instead for 
Did you mean: 

6703

I am trying to count TTL Pulses using Digital I/O ports on PCI-6703. I cannot get the reference timer. Any suggestions?

0 Kudos
Message 1 of 2
(3,220 Views)

@gnareshp wrote:

I am trying to count TTL Pulses using Digital I/O ports on PCI-6703. I cannot get the reference timer. Any suggestions?


Hello gnareshp,

 

I recently encountered the same problem as you and produced the attached VI to generate a reference to the internal counter. Just drag the VI into your block diagram and via the use of a Task Property Node, read the Devices and Channels properties of the Counter task and use them as inputs to the Counter Reference Generator VI. You can then wire the output of this VI to the input of a task sample clock to drive both tasks from the counter's frequency.

 

The way it works is by building a system-recognisable reference to the Counter through string concatenation of the Counter's task properties and

references to the internal structure of a Sample Clock.

 

CounterReference.png

 

 

This reference can be really useful for retriggering certain typically untriggerable proceses! 

 


Alex Thomas, University of Manchester School of EEE LabVIEW Ambassador (CLAD)

Message 2 of 2
(2,835 Views)